Phantom stops working makes a strange sound

[rpenrose]

Hi.  

My solo phantom, (which I have had for just over a year), being used with Spotify connect via dialogue plc has recently started dropping out.  Also makes a strange sound a bit like someone blowing a trumpet very very briefly.

Also, I've recently had to reset the dialogue several times.

Dialogue firmware: 1.14.1.3
Phantom firmware: 1.14.0.18

Any ideas?

Thanks